385434216564 has 96 divisors (see below), whose sum is σ = 922435584000. Its totient is φ = 125204330880.

The previous prime is 385434216547. The next prime is 385434216571. The reversal of 385434216564 is 465612434583.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 251752479 + ... + 251754009.

It is an arithmetic number, because the mean of its divisors is an integer number (9608704000).

Almost surely, 2^385434216564 is an apocalyptic number.

It is an amenable number.

385434216564 is an abundant number, since it is smaller than the sum of its proper divisors (537001367436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

385434216564 is a wasteful number, since it uses less digits than its factorization.

385434216564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3213 (or 3211 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 51.

The spelling of 385434216564 in words is "three hundred eighty-five billion, four hundred thirty-four million, two hundred sixteen thousand, five hundred sixty-four".